- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/92 - Compositions for stimulating production by acting on the underground formation characterised by their form or by the form of their components, e.g. encapsulated material
Patent holdings for IPC class C09K 8/92
Total number of patents in this class: 588
10-year publication summary
|
52
|
51
|
71
|
39
|
35
|
31
|
17
|
15
|
16
|
13
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21114 |
58 |
| Saudi Arabian Oil Company | 13681 |
56 |
| Schlumberger Technology Corporation | 11102 |
53 |
| Schlumberger Canada Limited | 7451 |
44 |
| Schlumberger Technology B.v. | 5224 |
41 |
| Services Petroliers Schlumberger | 5893 |
41 |
| Schlumberger Holdings Limited | 2773 |
26 |
| Prad Research and Development Limited | 2687 |
23 |
| Aramco Services Company | 4110 |
19 |
| Baker Hughes Holdings LLC | 2997 |
18 |
| Flotek Chemistry, LLC | 116 |
11 |
| Innospec Limited | 372 |
7 |
| CARBO Ceramics Inc. | 233 |
6 |
| Research Triangle Institute | 408 |
6 |
| Johnson Matthey Public Limited Company | 1769 |
5 |
| RTI International | 20 |
5 |
| Baker Hughes, a GE Company, LLC | 2102 |
5 |
| Tracerco Limited | 90 |
5 |
| Baker Hughes Incorporated | 5165 |
4 |
| BASF SE | 21101 |
4 |
| Other owners | 151 |